Paste a Chinese sentence.
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Not just red marks. Your AI sentence coach tells you why it's wrong, links the grammar point, and shows a more natural way to say it.
Practicing: 了 (le): Completed Actions — write your own 了 sentence below
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What it catches
Measure word
e.g. Measure Words: 个 and Its Limits
了 usage
e.g. 了 (le): Completed Actions
Word order
e.g. The 把 (bǎ) Sentence
把 sentence
e.g. The 把 (bǎ) Sentence
Word choice
Missing word
Extra word
Time expression
e.g. 了 (le): Completed Actions
Preposition
Not natural
Checker vs. generic tools
| Input: 我明天去了北京。 | Suggestion | Explains why? |
|---|---|---|
| ChineseGrammar.app | 我明天去北京。 | ✓ 了 marks completion — drop it with 明天 |
| A generic checker | 去子北京 ✗ | ✗ No explanation, wrong suggestion |
FAQ
Is this Chinese grammar checker really free?
Yes — 10 checks a day free with no sign-up, 30 a day with a free email unlock.
How is it different from Sapling or ChatGPT?
Every correction explains why it's wrong, links the exact grammar point, and is double-checked before you see it. When we're not sure, we say nothing rather than mislead you.
What level is it for?
Built for HSK 1-2 learners; explanations are in plain English.